docs: def _read_value(self, file):
          """Read a single value from the given file"""
  
          if self.data_type.nptype is not None:
              dtype = (np.dtype(self.data_type.nptype).newbyteorder(
                  self.endianness))
              return fromfile(file, dtype=dtype, count=1)
          return self.data_type.read(file, self.endianness)